Connectivity interface modules for Rockwell Automation ControlLogix (1756) processors. All ProSoft Technology ControlLogix modules are backplane compatible with the ControlLogix processor. The interface modules allow ControlLogix processors to communicate with a variety of non-Rockwell protocols or networks. Other ProSoft ControlLogix modules available include Flow Computers, in-chassis PCs and programmable modules such as ‘C’ and BASIC.